Average Temperatures for Ohio in May

Average temperatures for May at cities, towns, parks and lakes throughout Ohio are listed below in degrees Fahrenheit and Celsius.

You can jump to a separate table for Northern Ohio and Southern Ohio.

The tables give the normals for maximum and minimum temperatures based on weather data collected from 1991 to 2020 by the US National Centers for Environmental Information.

Northern Ohio

Average May temperatures
High °F Low °F Place High °C Low °C
72 50 Akron 22 10
71 47 Ashland 22 9
69 46 Ashtabula 20 8
69 46 Chardon 20 8
69 47 Chippewa Lake 21 8
71 51 Cleveland 22 11
72 51 Findlay 22 10
72 49 Fremont 22 10
72 50 Lima 22 10
71 50 Mansfield 22 10
72 50 Marion 22 10
71 47 Mount Vernon 22 8
72 48 New Philadelphia 22 9
70 50 Norwalk 21 10
69 51 Painesville on the Lake 21 11
69 53 Sandusky 20 12
72 49 Steubenville 22 9
72 50 Tiffin 22 10
73 51 Toledo 23 11
72 48 Wooster 22 9
71 48 Youngstown 22 9

Southern Ohio

Average daily temperatures in May
High °F Low °F Place High °C Low °C
72 50 Athens 22 10
74 52 Chillicothe 23 11
75 52 Chilo Lock Park 24 11
75 54 Cincinnati 24 12
74 52 Columbus 23 11
75 53 Dayton 24 12
75 52 Gallipolis 24 11
73 52 Greenville 23 11
73 48 Hannibal Lock & Dam 23 9
75 52 Marietta 24 11
73 49 McConnelsville Lock 23 9
73 48 Newark 23 9
76 52 Portsmouth 24 11
73 49 Springfield 23 10
73 51 Wilmington 23 11
74 51 Zanesville 23 11
Reference

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

Ohio Temperatures
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